Show that x=3(cotm+tanm), y=4(cotm-tanm) where m is a variable parameter, represent a hyperbola. Find the coordinate of its foci Class 11 Hyperbola

 

Show that x=a(1+t²/1-t²) y=2at/1-t2 is a hyperbola and find its eccentricity Class 11 Hyperbola